Separator.



W. L. SNYDER.

SBPARATOR.

APPLICATION FILED MAY 7, 1909.

Patented June '7, 1910.

M1 12 asses tirirrn stares Parana Erica.

WILLIAM L. SNYDER, OF DETROIT, MICHIGAN, ASSIGNOR TO THE AMERICAN AGRI-CULTURAL GI-IEMIGAL COMPANY, OF NEW YORK, N. Y., A CORPORATION OF CON-NECTICUT.

SEPARA'IOR.

To all whom it may concern:

Be it known that I, WILLIAM L. SNYDER, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements inSeparators, of which the following is a specification, reference beinghad therein to the accompanying drawings.

The invention relates particularly to centrifugal separators, and hasfor its primary object the production of a device of this charactercapable of effecting in a simple and inexpensive manner the separationof fine ground material, such as paint pigments, in grades of anydesired degree of fineness; and, with this object in view, the inventionconsists in the novel construction of the separator mechal'iism, in thepeculiar arrangement and combination of parts, and in various details ofconstruction, as will be more fully hereinafter set forth and claimed.

' For the purpose of illustration, I have shown the invention embodiedin a centrifugal separator of the well-known Cyclone type, this being asimple and the preferred form of mechanism, but I do not desire to belimited to this particular form of structure, as other types may as wellbe employed.

In the drawings illustrating the invention,

- Figure 1 is a vertical central section through a Cyclone separatorembodying my invention; Fig. 2 is a detached perspective view of theadjustable member; and Fig. 3 is a section taken on line 0cm of Fig. 1.

In the drawings thus briefly described, A designates the usual Cycloneseparator casing, formed with a cylindrical section B at its upper endand a tapering conical lower section C terminating in a dischargeopening or outlet D'.

E represents the usual discharge pipe communicating with the dischargeopening through which the coarse material is conveyed.

\Vithin the top of the separator casing is formed the usual outletopening F.

G is the conveyer pipe or conduit through which the fine material isdischarged, eX- tending within the opening F and for a distance withinthe casing interior as shown.

H represents the ordinary blast conduit, communicating with a tangentialinlet I formed in the casing side near its top, and

Specification of Letters Patent.

Application filed May 7, 1909.

Patented June 7, 1910.

Serial No. 494,669.

J is a blast fan arranged within the conduit H.

The operation of the separator as described is well known, the materialbeing fed within the separator casing through the "blast conduit and thecurrent passing spirally within the casing. The fine particles aredischarged through the upper conveyer pipe C, while the coarses materialdrops through the opening D and is conveyed by the discharge pipe E toany desired point.

In the form of separator described, it will be obvious that only onegrade of material will be taken off. It is the primary object of theinvention to provide means for varying the grade, so that material ofany de gree of fineness may be obtained fromthe separator if desired.Vith this end in view, I have provided means for *arying the position ofone of the casing outlets, preferably in the Cyclone type of separatorthe lower outlet or discharge opening within the conical portion of theseparator casing. In practice, I find that the raising of the outletdescribed or the projecting of the same upwardly within the casing hasthe effect of causing coarser material and a greater volume to passthrough the conveyer conduit G, with a correspondingly lesser amount ofmaterial through the lower discharge pipe E. Conversely, if a finer meshis desired to be taken off, this result is obtained by lowering theoutlet opening the desired amount.

More particularly, the mechanism for accomplishing the results describedis as follows: Within the discharge opening D at the lower end of theseparator casing I arrange a tubular member K of a length to extendupwardly within the separator cone and downwardly a considerabledistance to have a telescopic engagement with the discharge pipe E. Ialso preferably taper the upper end of this tubular memher, as indicatedat L, which permits the tube to be more easily removed from the materialthat packs around it in the operation of the separator. The upper end ofthe tubular member described constitutes the outlet for the separatorcone, and the raising or lowering of the member shifts the position ofthe outlet in the desired manner. Any means may be employed for holdingthe shiftable tube in its various positions of adjustment, and I havehere shown as the preferable devices bolts a engaging registeringopenings 1) 0 formed within the adjustable tube and the discharge pipe,as plainly indicated. As the material to be separated is forced by thetan through the casing, the coarse material fills in behind the tubularmember until it is filled to its top, in the manner indicated by thereference-letter c. The material then overflows, falling within the tubeand discharging out of the pipe E in the usual manner. It will be seenthat the filling or packing of the material below the mouth of thetubular member decreases the size of the cone, the latter beingshortened as the tube is adjusted upwardly within the casing. Thisvariation in the size of the casing produces the desired results asbefore pointed out, the raising and lowering of the tube causing coarserand finer material to be taken ofl from the separator. Thus, by a properadjustment of the tube and the consequent shifting of the outlet, anydesired mesh may be taken off from the separator.

\Vhat I claim as my invention is,

1. In a Cyclone separator the combination of the casing, provided with atangential air inlet, an outlet at its upper end, and formed with alower conical section or portion terminating in a discharge conduit, andan upwardly projecting tubular member within the conical section havinga telescopic engagement with the discharge conduit.

2. In a Cyclone separator, the combination with a casing formed with anoutlet at one end and a tapering or conical section at the opposite endtermmating in a material discharge opening and means within the taperedsection for changing the operative length of the casing to vary thegrade of material discharged through the outlet.

In a Cyclone separator, the combination of the conical section of thecasing terminating in a discharge opening, and a tubular membersurrounding said opening adapted to retain a quantity of materialbetween the same and the wall of the tapering section.

at. In a ,Cyclone separator, the combination of the conical section of acasing terminating in a discharge opening, and an adjustable tubularmember surrounding said opening adapted to retain a variable amount ofmaterial between the same and the wall of the tapered section.

5. In a Cyclone separator, the combination of the conical section of acasing terminating in a discharge opening and an axially adjustablemember fitted within the opening adapted to retain a variable amount ofmaterial between the same and the wall of the conical section.

(3. In a centrifugal separator, the combination with a separator casingprovided with an outlet at one end and a tapering sec tion at theopposite end having a material discharge opening, and means for changingthe operative length of the tapering section to vary the grade ofmaterial discharging through the outlet.

In testimony whereof I aflix my signature in presence of two witnesses.

IVILLIAM L. SNYDER.

lVitnesses FRED KEE,

J. C. OLEARY.

